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1. 发明申请

WO2020188576A1 PHOTOVOLTAIC CELL FOR LASER BEAM POWER DETECTION 审中-公开
公开(公告)号：WO2020188576A1
公开(公告)日：2020-09-24
申请号：PCT/IL2020/050336
申请日：2020-03-20
申请人： WI-CHARGE LTD
发明人： ALPERT, Ortal , MOR, Ori Refael , GOLAN, Lior , SAGI, Ran , CONFORTI, Eyal
IPC分类号： H02J50/30 , H01L31/0352
摘要： A wireless optical power transmission system comprising a transmitter and receiver, the transmitter comprising a laser emitting a beam, a scanning mirror for steering the beam towards said receiver and a control unit receiving signals from a detection unit on the receiver and controlling the beam power and the scanning mirror. The receiver has a photovoltaic cell having a bandgap energy of 0.75-1.2 e V, with a plurality of conductors on a beam receiving surface. A cover layer of material blocking illumination of wavelengths outside that of the laser, is disposed on the photovoltaic cell. The cover layer may have anti-reflective coatings on its top and bottom surfaces. The detection unit thus generates a signal representing the power of the laser beam impinging upon the receiver, independent of illuminations other than that of said laser beam. The control unit thus can maintain the laser power impinging on the receiver.

2. 发明申请

WO2017009854A1 SYSTEM FOR OPTICAL WIRELESS POWER SUPPLY 审中-公开
标题翻译：光纤无线供电系统
公开(公告)号：WO2017009854A1
公开(公告)日：2017-01-19
申请号：PCT/IL2016/050776
申请日：2016-07-14
申请人： WI-CHARGE LTD.
发明人： MOR, Ori Refael , ALPERT, Ortal , SLEPOY, Alexander , GOLAN, Lior , SAGI, Ran , SHMUKLER, Vadim , RONEN, Eitan , NAHMIAS, Omer , VAISLEIB, Victor
IPC分类号： H04B10/00
CPC分类号： H02J50/30 , H02J5/005 , H02J7/025 , H02J17/00 , H04B10/807
摘要： A system for optical wireless power transmission to a power receiving apparatus generally situated in a mobile electronic device. The transmitter has an optical resonator with end reflectors and a gain medium positioned between them, such that an optical beam is generated. The frequency of the beam is selected such that it is absorbed by almost all transparent organic materials in general use. A beam steering unit on the transmitter can direct the beam in any of a plurality of directions, and the beam is absorbed on the receiver by means of an optical-to-electrical power converter, through a low reflection surface. The band gap of this power converter is selected to be smaller than that of the gain medium. The receiver has a voltage converter including an inductor, an energy storage device and a switch. A beam steerer controller ensures that the beam impinges on the receiver.
摘要翻译：一种用于向通常位于移动电子设备中的电力接收设备的光无线电力传输的系统。发射机具有带有端反射器的光学谐振器和位于它们之间的增益介质，从而产生光束。选择光束的频率使其被几乎所有通常使用的透明有机材料吸收。发射机上的光束转向单元可以在多个方向中的任何一个方向上引导光束，并且通过光 - 电功率转换器通过低反射表面将光束吸收在接收器上。该功率转换器的带隙被选择为小于增益介质的带隙。接收器具有电压转换器，其包括电感器，能量存储装置和开关。光束转向器控制器确保光束照射在接收器上。

3. 发明申请

WO2017033192A1 WIRELESS POWER DISTRIBUTION SYSTEM 审中-公开
标题翻译：无线电力分配系统
公开(公告)号：WO2017033192A1
公开(公告)日：2017-03-02
申请号：PCT/IL2016/050927
申请日：2016-08-24
申请人： WI-CHARGE LTD.
发明人： SAGI, Ran , MOR, Ori Refael , GOLAN, Lior , NAHMIAS, Omer , RONEN, Eitan , ALPERT, Ortal
IPC分类号： H02J50/00 , H04B10/80
CPC分类号： H02J50/30 , H02J7/025 , H02J50/80 , H02J50/90 , H02J2007/0001 , H02J2007/0096 , H04B10/807
摘要： A system for transmission of power into a space, comprising one or more transmitters and several portable receivers which can receive power transmitted. Receivers can transmit data back to transmitters regarding their power needs, based on the state of charge of their batteries. A transmission protocol exists whereby each transmitter can detect legitimate receivers within its field of view and transmit a first amount of energy to any such receiver, which may report receiving that energy back to a transmitter, together with data relating to its power needs. Transmitters can deny power transmission to some receivers based on the data received from a reporting receiver. The first amount of energy transmitted may be used to power up a sleeping receiver, before transmission of useful amounts of power, if allowed by the protocol. Other aspects of the transmission protocol relate to the division of available power between requesting receivers.
摘要翻译：一种用于将功率传输到空间中的系统，包括一个或多个发射机和可接收发射功率的几个便携式接收机。接收机可以根据电池的充电状态将数据发送回发射机，以了解电力需求。存在一种传输协议，其中每个发射机可以检测其视野内的合法接收机，并将第一数量的能量发送到任何这样的接收机，这些接收机可以将接收到该能量的报告连同其功率需求相关的数据报告给发射机。发射机可以基于从报告接收机接收到的数据来拒绝对某些接收机的电力传输。如果协议允许，则在发送有用量的功率之前，所传输的第一能量可以用于为睡眠接收机加电。传输协议的其他方面涉及在请求接收者之间划分可用功率。

4. 发明申请

WO2021084517A1 WIRELESS POWER TRANSMISSION SYSTEM WITH ADAPTIVE DYNAMIC SAFETY MANAGEMENT 审中-公开
公开(公告)号：WO2021084517A1
公开(公告)日：2021-05-06
申请号：PCT/IB2020/060254
申请日：2020-11-01
申请人： WI-CHARGE LTD.
发明人： GOLAN, Lior , BIDERMAN, Yoav , SAGI, Ran , ALPERT, Ortal , MOR, Ori Refael
IPC分类号： H02J50/80 , H02J50/30 , H04B10/079 , H04B10/80
摘要： Methods and systems for safely and effectively supplying a beam of wireless power from a transmitter to at least one receiver. A delta signal is generated by repeatedly calculating the difference in power between the power of the beam emitted by the transmitter and the amount of power received at the receiver. The system dynamically generates a time delay, which is a time period shorter than the maximal exposure duration relating to safe exposure durations for the power level of the delta signal. If the time delay is exceeded, the system changes an operational parameter of the system, such as terminating the beam. Because of limitations to building a perfect timing system, the system is built to be more sensitive to time delays having longer safe exposure durations, with large delta signals having short safe exposure durations being responded to immediately and without significant regard to the time delay.

5. 发明申请

WO2019224827A1 WIRELESS POWER SYSTEM HAVING IDENTIFIABLE RECEIVERS 审中-公开
公开(公告)号：WO2019224827A1
公开(公告)日：2019-11-28
申请号：PCT/IL2019/050587
申请日：2019-05-23
申请人： WI-CHARGE LTD
发明人： BIDERMAN, Yoav , ALPERT, Ortal , MOR, Ori Refael , NAHMIAS, Omer , GOLAN, Lior , SAGI, Ran , LEVIN, Zohar , SLEPOY, Alexander , ROSH, Yan , CONFORTI, Eyal
IPC分类号： H04B10/112 , H02J50/60
摘要： A wireless power transmitter system for directing a high energy beam towards receivers fitted with identifying signs. One type of the identifying signs may have asymmetric shape properties, such that their mirror image cannot be matched to their actual shape, even after the image is rotated, tilted or otherwise geometrically manipulated. The system can thus determine whether a detected image of a sign is a true image received directly from said receiver, or is received after the imaged beam has undergone a reflection between the receiver and the transmission system. In the latter case, the system can prevent high power transmission from being directed to a location other than a real receiver, which could be a safety hazard. Other types of identifying signs may be located in or on the borders of different zones of a transmission space, to identify zones where transmission may be allowed or prohibited.

6. 发明申请

WO2017179051A3 SYSTEM FOR OPTICAL WIRELESS POWER SUPPLY 审中-公开
标题翻译：光学无线电源系统
公开(公告)号：WO2017179051A3
公开(公告)日：2017-10-19
申请号：PCT/IL2017/050438
申请日：2017-04-09
申请人： WI-CHARGE LTD.
发明人： SLEPOY, Alexander , GOLAN, Lior , NAHMIAS, Omer , SAGI, Ran , ALPERT, Ortal , MOR, Ori Refael
IPC分类号： G01N21/00 , G06M7/00 , H01J3/14 , H01S3/06 , H02M3/158 , H04B10/00
摘要： A system incorporating safety features, for optical power transmission to receivers, comprising an optical resonator having end reflectors and a gain medium, a driver supplying power to the gain medium, and controlling its small signal gain, a beam steering apparatus and a controller to control at least the beam steering apparatus and the driver. The controller responds to a safety risk occurring in the system, by outputting a command to change at least some of the small signal gain of the gain medium, the radiance of the optical beam, the power supplied by the driver, the scan speed or the scan direction and position of the beam steering apparatus, or to register the scan pose which defines the location of said optical-to-electrical power converter. The controller may also ensure a high overall radiance efficiency, and may warn of transmitted power not received by a targeted receiver.
摘要翻译：包括用于向接收器的光功率传输的安全特征的系统，其包括具有端反射器和增益介质的光学共振器，向增益介质供应功率的驱动器，以及控制其小信号增益，a 以及至少控制所述光束导向装置和所述驱动器的控制器。控制器通过输出命令以改变增益介质的小信号增益，光束的辐射率，由驱动器提供的功率，扫描速度或扫描光束转向设备的方向和位置，或者登记限定所述光电功率转换器的位置的扫描姿态。控制器还可以确保高整体辐射效率，并且可以警告未被目标接收器接收的发射功率。

7. 发明申请

WO2017179051A2 SYSTEM FOR OPTICAL WIRELESS POWER SUPPLY 审中-公开
公开(公告)号：WO2017179051A2
公开(公告)日：2017-10-19
申请号：PCT/IL2017/050438
申请日：2017-04-09
申请人： WI-CHARGE LTD.
发明人： SLEPOY, Alexander , GOLAN, Lior , NAHMIAS, Omer , SAGI, Ran , ALPERT, Ortal , MOR, Ori Refael
摘要： A system incorporating safety features, for optical power transmission to receivers, comprising an optical resonator having end reflectors and a gain medium, a driver supplying power to the gain medium, and controlling its small signal gain, a beam steering apparatus and a controller to control at least the beam steering apparatus and the driver. The controller responds to a safety risk occurring in the system, by outputting a command to change at least some of the small signal gain of the gain medium, the radiance of the optical beam, the power supplied by the driver, the scan speed or the scan direction and position of the beam steering apparatus, or to register the scan pose which defines the location of said optical-to-electrical power converter. The controller may also ensure a high overall radiance efficiency, and may warn of transmitted power not received by a targeted receiver.

8. 发明申请

WO2017158605A1 SYSTEM FOR OPTICAL WIRELESS POWER SUPPLY 审中-公开
公开(公告)号：WO2017158605A1
公开(公告)日：2017-09-21
申请号：PCT/IL2017/050329
申请日：2017-03-14
申请人： WI-CHARGE LTD.
发明人： GOLAN, Lior , SLEPOY, Alexander , NAHMIAS, Omer , SAGI, Ran , ALPERT, Ortal , MOR, Ori Refael
IPC分类号： H04B10/80
摘要： A system incorporating safety features, for optical power transmission to receivers, comprising an optical resonator having end reflectors and a gain medium, a driver supplying power to the gain medium, and controlling its small signal gain, a beam steering apparatus and a controller to control at least the beam steering apparatus and the driver. The controller responds to a safety risk occurring in the system, by outputting a command to change at least some of the small signal gain of the gain medium, the radiance of the optical beam, the power supplied by the driver, the scan speed or the scan direction and position of the beam steering apparatus, or to register the scan pose which defines the location of said optical-to-electrical power converter. The controller may also ensure a high overall radiance efficiency, and may warn of transmitted power not received by a targeted receiver.

9. 发明公开

EP4246770A2 WIRELESS POWER SYSTEM HAVING IDENTIFIABLE RECEIVERS 审中-实审
公开(公告)号：EP4246770A2
公开(公告)日：2023-09-20
申请号：EP23190192.7
申请日：2019-05-23
申请人： WI-CHARGE LTD
发明人： BIDERMAN, Yoav , ALPERT, Ortal , MOR, Ori Refael , NAHMIAS, Omer , GOLAN, Lior , SAGI, Ran , LEVIN, Zohar , SLEPOY, Alexander , ROSH, Yan , CONFORTI, Eyal
IPC分类号： H02J50/60
摘要： A wireless power transmitter system for directing a high energy beam towards receivers fitted with identifying signs. One type of the identifying signs may have asymmetric shape properties, such that their mirror image cannot be matched to their actual shape, even after the image is rotated, tilted or otherwise geometrically manipulated. The system can thus determine whether a detected image of a sign is a true image received directly from said receiver, or is received after the imaged beam has undergone a reflection between the receiver and the transmission system. In the latter case, the system can prevent high power transmission from being directed to a location other than a real receiver, which could be a safety hazard. Other types of identifying signs may be located in or on the borders of different zones of a transmission space, to identify zones where transmission may be allowed or prohibited.

10. 发明公开

EP3342025A1 WIRELESS POWER DISTRIBUTION SYSTEM 审中-公开
公开(公告)号：EP3342025A1
公开(公告)日：2018-07-04
申请号：EP16838682.9
申请日：2016-08-24
申请人： Wi-Charge Ltd.
发明人： SAGI, Ran , MOR, Ori Refael , GOLAN, Lior , NAHMIAS, Omer , RONEN, Eitan , ALPERT, Ortal
IPC分类号： H02J50/00 , H04B10/80
CPC分类号： H02J50/30 , H02J7/025 , H02J50/40 , H02J50/80 , H02J50/90 , H02J2007/0001 , H02J2007/0096 , H04B10/807
摘要： A system for transmission of power into a space, comprising one or more transmitters and several portable receivers which can receive power transmitted. Receivers can transmit data back to transmitters regarding their power needs, based on the state of charge of their batteries. A transmission protocol exists whereby each transmitter can detect legitimate receivers within its field of view and transmit a first amount of energy to any such receiver, which may report receiving that energy back to a transmitter, together with data relating to its power needs. Transmitters can deny power transmission to some receivers based on the data received from a reporting receiver. The first amount of energy transmitted may be used to power up a sleeping receiver, before transmission of useful amounts of power, if allowed by the protocol. Other aspects of the transmission protocol relate to the division of available power between requesting receivers.

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